Support for the 7895 is only available in the CAM version of the aic7xxx
driver for FreeBSD. Support for any of the 789X chips requires some fairly
extensive changes to the way the driver queues up requests so retrofitting
the CAM changes into the driver that NetBSD currently has is non-trivial.
This is the same reason the even FreeBSD-current will not have 7895 support
until the CAM SCSI layer is integrated into the system.
--
Justin